Promo Grab Bag

I am going to send some stuff to a fellow Etsy seller for a promo grab bag. She is going to a craft show where she will be handing them out. I am definitely going to include my business cards, but I am not sure what else to include. Have you ever put anything in a promo bag if so what did you put in it? What kind of free samples do you give? Also what kind of free samples would you like to get? Help me please! I have to get it to the person by May 1st. Thank you!